Roofing



April 6, 1937. H BLUHM 2,076,014

ROOFING Filed June 13, 1935 I 1 N V EN TOR. Fred ff. 2 Z Z1 7?- A TTORNE Y.

Patented Apr. 6, 193'? UNITED STATES PATENT OFFICE Application June 13,

1 Claim.

This invention relates to roofing and the object of the invention is to provide a roofing formed from a series of interlocking and overlapping composition shingles.

One of the particular objects of the invention is to provide a roofing formed from shingle elements in which each shingle element is in the form of a rhomboid and in which the lower edges of the elements are laid horizontally with the sloping edges overlapping at an angle to the vertical so that the water will readily drain off from the shingles and not flow under the overlap.

A further object of the invention is to provide a shingle having a rhomboid form and provided with an angular slot on one side near the lower edge and having a notch in the opposite side near the lower edge so that the shingles may be interengaged with the notch of one shingle fitting in the slot of an adjacent shingle to produce an overlapping angular edge which will prevent water from working back under the overlap.

Another object of the invention is to provide a shingle of the character described having a strong nailing corner below the slot in which the corner of an adjacent shingle below the notch covers the nail.

These objects and the several novel features of the invention are hereinafter more fully described and claimed and the preferred form of construction by which these objects are attained is shown in the accompanying drawing in which- Fig. l is a plan view of a roofing element embodying my invention.

Fig. 2 is a View showing the joint between two interlocking shingles.

Fig. 3 is a plan view of a portion of the laid roofing.

The shingle I is preferably made of a composition which may be any of the usual compositions such as asphalt, asphalt and asbestos or other semi-flexible compositions and are usually coatedwithaground slate surfacing. This shingle I is in the form of a rhomboid and is provided at one angular edge It with a slot 2 opening through the edge of the shingle and extending at an angle toward the bottom of the shingle. This slot 2 is provided with a rounded end portion 3 as shown to prevent the shingle from tearing at this point. The opposite angular edge of the shingle is provided with a notch 4 at approximately the same distance from the bottom edge of the shingle as the rounded portion 3 of the slot 2.

In assembly, the shingle I is slipped under the 1935, Serial No. 26,405

edge of an adjacent shingle 5, as shown in Fig. 2, and the notch 4 of the shingle I is engaged in the portion 3 of the slot 2 of the shingle 5 so that the edge 6 of the shingle I extends beneath the edge of the shingle 5 beyond the bottom or end portion 3 of the notch 2. This seats the notch 4 into the portion 3 of the notch 2 and the lower corner I of the shingle I extends over the corner 9 of the shingle 5. When the shingles are laid the lower edges 8 of the shingles are laid horizontally and the corner 9 of each shingle is nailed down with a roofing nail I I shown in Figs. 2 and 3. The next shingle may be then slipped into the slot 2, as shown in Fig. 2, with the corner I of the next shingle overlying the'corner 9 of the first shingle and this corner I lies over and covers the nail in the corner 9 of the first shingle so that there are no exposed nails in the completed roof.

When the roof is completed it appears as shown in Fig. 3 and it will be noted that the edges of the rhomboid shaped shingles extend at an angle to the vertical and overlap the adjacent shingles so that rain falling on the roof will tend to flow downwardly vertically and will pass over the angular edges ID of the shingles and as these edges extend at an angle the rain will not tend to work back up under the overlap edges. This angular edge gives an advantage over a vertical edge shingle due to the fact that with the vertical edge the rain may tend to work back under the overlap, but by forming the shingle in the shape of a rhomboid this shape insures the edges extending at an angle at the overlap to insure drainage away from the overlap. By nailing through the corner 9 of each shingle, the corner 1 of the next shingle covers the nail and by the inter-engagement of the notch 4 in the slot 2 the corner I of the top shingle is held firmly so that high winds will not blow up under the edges of the shingles and blow the shingles off from the roof.

From the foregoing description it becomes evident that the roofing is very simple and efficient to apply, provides a roofing in which all of the nails are concealed and which will drain properly at all times and provides a device which accomplishes the objects described.

Having thus fully described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is-- A roof formed from a plurality of independent composition shingles laid in horizontal rows, each shingle being in the form of a rhomboid without projections and being laid with the bottom edges horizontal and with the side edges extending in parallel relation and at an angle to the vertical, each shingle having a slot adjacent the bottom edge extending inwardly and downwardly from one angular edge at a slight angle to the bottom edge and a notch extending inwardly from the opposite angular edge at approximately the same distance from the bottom edge as the slot, the arrangement being such that the notched edge of one shingle may be inserted in the slot of an adjacent shingle with the notched angular edge of the shingle extending beyond the inner end of the slot of the adjacent shingle, the slotted angular edge of one shingle above the slot overlying the notched angular edge of the other shingle above the notch and the lower corner of the slotted shingle below the slot being nailed in position and the angular notched edge of the adjacent shingle extending through the slot and over the nail, the four edges of each shingle being straight.

FRED H. BLUHM. 

